<!DOCTYPE html>
<style>
    #foo {
        transition: background-color 1s 2s linear,
            opacity,
            this is an invalid property value;
    }
</style>
<div id="foo"></div>
<script src="../../include.js"></script>
<script>
    test(() => {
        println("PASS! (Did not crash/timeout)");
    });
</script>
